French Section of the Workers' International

The French Section of the Workers' International (SFIO) was a socialist political party in France that existed from 25 April 1905 to 4 May 1969. The party was opposed to imperialism and militarism, but it would abandon its anti-militarist views to take part in the national unity government formed during World War I. The party replaced internationalist class struggle with patriotism, and the party split into three factions in 1920: the French Communist Party, the SFIO, and the French Section of Comintern.